Table 4.

Hill parameters for the experimental data

	Jmaxexp, μmol·mg−1·h−1		C50, mM			R2
	n = 1	n = 2	n = 1	n = 2	Codina et al. (9)*	n = 1	n = 2
Experiment 1 (K+ concentration varies)	2.23 ± 0.09	2.01 ± 0.12	0.346 ± 0.066	0.275 ± 0.059	0.2	0.968	0.894
Experiment 2 (NH4+ concentration varies)	1.64 ± 0.12	1.49 ± 0.10	0.974 ± 0.282	0.899 ± 0.171	2	0.942	0.930
Experiment 3 (Na+ concentration varies; NH4+-free bath)	1.11 ± 0.11	0.95 ± 0.09	5.45 ± 2.24	4.26 ± 1.27	5	0.976	0.947
Experiment 4 (Na+ concentration varies, K+-free bath)	0.88 ± 0.02	0.81 ± 0.02	3.38 ± 0.48	3.73 ± 0.25	5	0.998	0.998

See Eq. 38.

^*C₅₀ values reported by Codina et al. (9); the corresponding Hill coefficient is not reported in Ref. 9.